CN108457762A - Cylinder liner for internal combustion engine - Google Patents
Cylinder liner for internal combustion engine Download PDFInfo
- Publication number
- CN108457762A CN108457762A CN201810127592.1A CN201810127592A CN108457762A CN 108457762 A CN108457762 A CN 108457762A CN 201810127592 A CN201810127592 A CN 201810127592A CN 108457762 A CN108457762 A CN 108457762A
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- Prior art keywords
- cylinder body
- engine cylinder
- adhesive surface
- bushing
- engine
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- 238000002485 combustion reaction Methods 0.000 title description 4
- 239000000853 adhesive Substances 0.000 claims abstract description 54
- 230000001070 adhesive effect Effects 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 21
- 238000005266 casting Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 8
- 229910001018 Cast iron Inorganic materials 0.000 description 7
- 239000012809 cooling fluid Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000005094 computer simulation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F2001/008—Stress problems, especially related to thermal stress
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F2200/00—Manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F2200/00—Manufacturing
- F02F2200/06—Casting
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The cylinder liner for engine cylinder body including endoporus kerf includes the first engine cylinder body adhesive surface and the second engine cylinder body adhesive surface.The stickup level that second engine cylinder body adhesive surface has between cylinder liner and engine cylinder body is less than the first engine cylinder body adhesive surface.The depth of second engine cylinder body adhesive surface kerf from the bore section that the distance that the axial end portion of bushing extends is more than engine cylinder body.
Description
Technical field
The present invention relates to a kind of cylinder liners for internal combustion engine.
Background technology
The context of this introduction general description present invention.It the work of inventor described in this description and is submitting
It can not be limited to the description of the various aspects of the prior art of the present invention when application, cannot directly or impliedly be considered as the present invention
Background technology.
By such as castiron cylinder liner for gas engine, made of the lightweight materials such as aluminium alloy
Better wearability is provided in engine cylinder body.These cylinder liners can be placed in engine cylinder body mould, to the engine
Cylinder block material can be cast around cylinder liner.Cylinder liner is embedded later and limits the cylinder-bore in engine cylinder body.
These bushings are known as " cast-in-place " type bushing.
It keeps strong viscosity particularly significant between bushing and engine block, to prevent bushing from moving, prevents or resist operation
Deformation in the process, and improve the thermal conductivity between bushing and engine cylinder body.It is known for provide excellent machinery and
The cylinder liner of heat bonding includes coarse outer surface.These sleeve surfaces can be described as having " as cast condition " " thorniness " or coarse pour
Cast surface.The example of such as cast condition can be pierced in the offer of the outer surface of bushing, mushroom is convex and crack.Include the lining of exemplary " as cast condition "
Set can be provided by multiple manufacturers.One exemplary manufacturers, TPR Sharp Corporations possess cylinder liner's
Registered trademark, by trade mark, it provides the bushing with as cast condition outer surface.Other provide the cylinder with similar as cast condition surface
The similar manufacturer of bushing, including bridle, Hui Men companies etc..
Exemplary cylinder bushing with " as cast condition " surface may include surface bulge, can extend in the outer surface of bushing
0.3 to 0.7 millimeters deep, and usually generated by using centrifugal casting process.In contrast, other kinds of bushing usually passes through
Mechanical processing base, which pours, to be squeezed round billet charge bar and generates.This can form the outer surface of smooth mechanical processing, rather than " as cast condition "
Surface, and they are intended to be compressed into the engine cylinder body in advance cast opposite with " cast-in-place ".
Using such as cast condition bushing there may be the problem of be that bushing can generate defect because of such as crack, especially send out
Near motivation cylinder body top.This problem when these as cast condition bushings it is particularly evident when top-open type cylinder body is used together, this
There is cooling fluid set to be centered around around each cylinder in top-open type cylinder body, extend to the surface of cylinder body, especially when there are slot or " saws
It is even more so when trace " is across the inner hole areas of the cooling fluid set of the both sides of a string of cylinder-bores of connection.
A kind of trial for wherein solving the problems, such as this is to change the bushing made of the material with higher intensity into, such as high
Intensity steel sleeve rather than cast iron liners.However, high intensity bushing is costly compared with cast iron liners.Another method is so that lining
Set thickens, thus intensity higher.However, it is stressed again that these bushings are more expensive, and machining cost higher.
It is by gasket or voussoir to solve another known method that these appear in crack or defect on cylinder liner
It is put into kerf, attempts that the gap in crack is closed or minimized, or to provide additional support further climing to prevent crack arrest seam
Prolong.From the beginning it is avoided that the generation of these defects is extraordinary selection, so as to avoid engine complete failure and/or costliness
And heavy intensive repair.
Invention content
There is the first engine in the cylinder liner for engine cylinder body of an illustrative aspect, including endoporus kerf
Cylinder body adhesive surface and the second engine cylinder body adhesive surface.Second engine cylinder body adhesive surface is in cylinder liner and engine
The stickup level having between cylinder body is less than the first engine cylinder body adhesive surface.Second engine cylinder body adhesive surface is from bushing
Axial end portion extend distance be more than engine cylinder body bore section in kerf depth.
In another illustrative aspect, the first engine cylinder body adhesive surface is as cast condition surface.
In another illustrative aspect, which is thorn latching surface.
In another illustrative aspect, which includes multiple protrusions radially extended between 0.3 to 0.7 millimeter.
In another illustrative aspect, the second engine cylinder body adhesive surface is machining surface.
In another illustrative aspect, the first engine cylinder body adhesive surface prolongs from the second engine cylinder body adhesive surface
It stretches, essentially across the remaining axial range of bushing.
In another illustrative aspect, the first engine cylinder body adhesive surface is configured between bushing and engine cylinder body
Strong mechanical viscous force and high-termal conductivity are provided, and the second engine cylinder body adhesive surface is configured between bushing and engine cylinder body
The mechanical viscous force reduced is provided, so as to the lagging material in casting process and engine block material cooling period, in bushing material
Stress with reduction when different heat expansion coefficient between material and engine block material is transmitted to bushing from engine cylinder body.
In another illustrative aspect, the second engine cylinder body adhesive surface is configured to allow in cylinder liner and engine
Cylinder block material cooling period carries out axial displacement between the second engine cylinder body adhesive surface and engine cylinder body.
In another illustrative aspect, the second engine cylinder body adhesive surface circumferentially extends through engine cylinder body endoporus
Part near zone, and the first engine cylinder body adhesive surface extends through remaining circumference range from the axial end portion of bushing.
In this way it is possible to directly solve and prevent the deep layer inducement for leading to cylinder liner defect, so as to use
Rough surface or " as cast condition " cylinder jacket, in conjunction with the kerf of engine cylinder body inner hole areas, cylinder liner and engine cylinder body it
Between excellent mechanical viscous force and thermal conductivity are provided, passed through without higher cost, high-strength material, and before can preventing simultaneously
The defect gone through.
From the detailed description provided hereinafter, other application field of the invention will become obvious.It should be understood that in detail
Thin description is merely to illustrate with specific example rather than limiting sense the scope of the present invention.
It, will very according to below in conjunction with attached drawing detailed description of the present invention, including claims and exemplary embodiment
It is readily apparent features described above of the invention and advantage and other feature and advantage.
Description of the drawings
By the detailed description and the accompanying drawings, the present invention will obtain more complete understanding.
Fig. 1 is the isometric views of top-open type engine cylinder body 100.
Fig. 2 is the isometric views of the bore section of top-open type engine cylinder body 100.
Fig. 3 is the section isometric views of the bore section of top-open type engine cylinder body 100.
Fig. 4 is another isometric views of the section of engine cylinder body 100.
Fig. 5 is another vertical view of the section of engine cylinder body 100.
Fig. 6 shows the cylinder liner 110 of exaggeration deformation.
Fig. 7 shows the end cross-sectional perspective view of the exemplary embodiment of cylinder liner 700 according to the present invention.
Fig. 8 shows that the isogonism of the end of bushing 700 regards perspective view.
Fig. 9 shows the isogonism sectional perspective view of a part for the engine cylinder body 706 including cylinder liner 700.
Figure 10 shows remnants when both traditional cylinder liner and Novel air cylinder bushing transit to exemplary fabrication
Stress；And
Figure 11 is another view of cylinder liner 700.
Specific implementation mode
Fig. 1 shows the isometric views of top-open type engine cylinder body 100.Engine cylinder body 100 includes multiple cylinder-bores
102, cylinder-bore 102 is limited by cylinder liner 104, and cylinder liner 104 is already integrated into engine cylinder body 100 in casting process
In.In general, these cylinder liners 104 may be provided in mould, and the engine block material melted, such as aluminium alloy etc. can
It is injected into mould.During filling black mould, melted material then surrounds cylinder.Packing material is cooled into solid,
And back bush is bonded with engine block material securely.In an example process, casting process is sprayed molten under high pressure
The engine block material melted, to ensure that engine block material and cylinder liner are in close contact.As described above, having been developed for
Include the cylinder liner of " as cast condition " outer surface." as cast condition " outer surface can provide excellent between bushing and engine block material
Structure and hot sticky power.
Engine cylinder body 100 includes that cooling fluid covers 106, and cooling fluid set 106 exposes (open to the outside world) towards top surface 110,
And thus it is known as " top-open type cylinder body ".Cooling fluid set 106 provides fluid communication channel substantially about cylinder-bore, leads to
These channels are crossed, cooling fluid is recyclable to be produced to remove and manage the combustion process in the operation including engine cylinder body 100
Raw heat.
Fig. 2 shows the short distance isometric views of the bore section of engine cylinder body 100.Endoporus be referred to as cylinder-bore it
Between engine block portion.A kind of improve manages and the method that removes the heat from cylinder-bore is, is provided in bore section
Fluid communication channel 108, so that fluid flows between the cooling fluid near endoporus covers 106 parts.These are in fluid communication logical
Road 108 is commonly known as " kerf " channel, and channel 108 herein explained below is " kerf " channel.Although this is described
It refers to " kerf ", but to be not limited in any specific side in the method for the bore section of engine cylinder body generation slot or tool
Method or tool.
As explained above, it is known that there are a kind of problems, wherein crack may be near top surface and near inner hole areas
It is generated in cylinder liner.Although having attempted many methods solves the problems, such as this, none of these methods understands reason for that simultaneously
Solve the underlying causes that crack generates.From solve the problems, such as that present inventor has studied problem unlike attempted method before
The reason of, it was found that the root of problem, and then the method that result develops the underlying causes that can solve crack generation.The present invention
Person solves the problems, such as this to have the ability.
In particular, present inventor has studied manufacturing process, including structural analysis, it can explain heat transfer and start
The coefficient of thermal expansion of material included in the mechanical processing process such as machine cylinder body casting process and subsequent process, such as hole adds, top surface
Difference.By unique analysis, the inventors have found that stress and tension during these, and it is many cylinders
The reason of bushing defect.
Fig. 3 is the section isometric views of the bore section of engine cylinder body 100, and it illustrates in cylinder liner 104
Residual stress, the residual stress are originated from the casting carried out using computer model and mechanical processing process, and computer model is explained
The reason of in terms of the structure and heating power of above procedure, including the material of the material of cylinder liner 104 and engine cylinder body 100
The difference of coefficient of thermal expansion.In particular, Fig. 3 is to the cylinder liner 104 made of cast iron materials and by aluminum alloy materials
Overstrain in manufactured engine cylinder body 100 is modeled and is generated.Fig. 3 is clearly showed that, in cylinder liner 104
Residual stress is gathered in close to top surface 108 and close to the areas adjacent of kerf 108.
Present inventor further understands after having studied this model, between cast iron liners material and aluminum alloy materials
There are prodigious differences for coefficient of thermal expansion, and further identify, and " as cast condition " surface of bushing is in bushing and engine cylinder body material
Provide strong mechanical viscous force between material, thus the inventors have found that the reason of problem.Coefficient of thermal expansion of the aluminium alloy than cast iron
Higher.This means that while cooling, aluminium alloy will tend to shrink than cast iron materials more.In not having including cast-in-place
In the engine cylinder body of the cylinder liner on " as cast condition " surface, this usually not leads to the problem of, because there is no securely for aluminium alloy
It is bonded on cylinder liner.In these cases, aluminium alloy freely " cunning " can fall cylinder liner surface, which reduce or it is basic
On eliminate and may be placed in residual stress on bushing from engine block material originally.Completely on the contrary, with " as cast condition "
The cylinder liner on surface introduces, and stronger structure viscous force can be provided between cylinder liner and engine cylinder body, the present invention
Person, it is realized that this generate the result is that engine block material introduces stress into cylinder liner.Unlike non-as cast condition surface bushing,
The possibility of residual stress can't be reduced due to engine block material slides sleeve outer surface in cooling procedure.Therefore, have
There is the cylinder liner that " as cast condition " shows to bear the residual stress not appeared in the bushing for not having " as cast condition " surface.
In addition, present inventor is, it is realized that the presence of kerf has further arrived residual stress concentrations close to endoporus kerf
Bushing region.During the mechanical processing of kerf, removing material can make the residual stress in material cause bushing from cylinder aperture
It is straight to be pivoted out or hinge.Residual stress tends to preference kerf closure, therefore to allow engine block material and structure
The bushing of upper adhesion is stretched downwards, to radially outward be pivoted around kerf base portion.Fig. 3 is shown clearly in cylinder liner 104
In caused the reason of found by present inventor and by its understanding residual stress.
Fig. 4 is another isogonism sectional perspective view of engine cylinder body 100.Although schematic diagram is overstated in certain degree
, but Fig. 4 is shown, the engine block material caused by the difference of coefficient of thermal expansion it is more than lining contracts due to cause it is residual
Residue stress, it is intended to bushing radially outward be stretched close to top surface, be formed about " bell-shaped opening " so as to cause gasket end.
In other words, engine block material tends to stretch bushing downwards with the cooling of engine cylinder body.So as to cause adjacent top surface
The higher overstrain of 110 part of bushing.
Fig. 5 is to show another problem from another plan view in terms of the top surface of engine cylinder body 100.Engine cylinder
Thermal contraction of the body in casting process, which tends to lead to cylinder liner in shape, becomes at least slightly oval, and non-circular.
Schematic diagram Fig. 5 is greatly exaggerated the ovality in engine cylinder body or the relative quantity of deformation, understands to facilitate.Ovality exists
Position, which is more leaned in central cylinder-bore, to be tended to become much larger.Because of the presence of ovality, the inner surface or endoporus of cylinder liner pass through
Mechanical processing is so that endoporus becomes more round shape again.Fig. 6 shows the cylinder liner 104 of exaggerated deformation, so that outer surface is formed
Ellipse.The over mechanical processing of endoporus 114 of cylinder liner 104 is to provide circular shape.104 outer surface 112 of cylinder liner
Ovality combine machined circular inner hole 114, lead to the variation of wall thickness.Particularly, cylinder liner 104 is more ellipse
Circle just has to remove more materials, and to provide circular inner hole 114, jacket wall variation is bigger, then the endoporus of engine cylinder body
Jacket wall near part is thinner.Thinner jacket wall tend to further by cylinder liner stress concentration or polymerization.
Residual stress is caused to reach maximum value in addition, thinner jacket wall is positioned close to the position near endoporus.
Fig. 7 shows the end cross-sectional perspective view of the exemplary embodiment of cylinder liner 700 according to the present invention, and Fig. 8
The isometric views of the end of bushing 700 are shown.The end outer surface of bushing 700 has the first engine cylinder body adhesive surface
702 and the second engine cylinder body adhesive surface 704.Second engine cylinder body adhesive surface 704 includes " as cast condition " surface, can be with
Engine cylinder body provides excellent structure and hot sticky power.In contrast, the first engine cylinder body adhesive surface 702 is by " as cast condition "
Generated machining surface after surface removes.Particularly, the surface that the first engine cylinder body adhesive surface 702 has is not
Structurally it is adhered to the material of engine block material and the second engine cylinder body adhesive surface 704.In this way, it is wrapping
During the casting and the subsequent manufacture that include the engine cylinder body of cast-in-place bushing 700, engine block material is not as
It is the same on engine with two cylinder body adhesive surface 704, structurally it is adhered to the first engine cylinder body adhesive surface 702.Due to starting
Machine cylinder block material is not adhered to the first engine cylinder body adhesive surface 702 structurally yet, therefore in engine cylinder body cooling phase
Between, the difference of coefficient of thermal expansion cause engine block material along 702 slide downward of the first engine cylinder body adhesive surface and
The surface 702 is not stretched.In this way, will produce originally it is above-mentioned shown in and the residual stress that is discussed be avoided or
It significantly decreases.
Although this description and exemplary embodiment refer to the first engine cylinder body adhesive surface with machining surface
With the second engine cylinder body adhesive surface with " as cast condition " surface, it should be understood that the present invention includes any kind of surface, only
The structure viscous force between the first engine cylinder body adhesive surface and engine block material is wanted to be pasted less than the second engine cylinder body
Structure viscous force between surface and engine block material.
Fig. 9 shows the isogonism sectional perspective view of a part for the engine cylinder body 706 including cylinder liner 700.Fig. 9 shows
The residual stress in cylinder liner is gone out, which is originated from the casting using computer model modeling and was machined
The reason of journey, computer model explains the structure and heating power aspect of above procedure, include the difference of coefficient of thermal expansion.Compare figure
9 and Fig. 3, in cylinder liner residual stress substantially reduce it is fairly obvious.Close to top surface and adjacent to kerf in cylinder liner 700
Residual stress is greatly reduced compared to traditional cylinder liner 104.In one exemplary embodiment, the first engine cylinder body is viscous
Paste the depth that surface 702 is more than the kerf of engine cylinder body from the axially extending distance in bushing end.By bushing and engine cylinder body
Structure viscous force between material is reduced to the position near kerf, fully alleviates residual stress, greatly minimizes this area
The possibility of the cylinder liner defect in domain.The axial range of first engine cylinder body adhesive surface 702 should be sufficient, with alleviate with
The relevant residual stress of kerf, and therefore, the range of the first engine cylinder body adhesive surface 702 should be related to the depth of kerf.
In one exemplary embodiment, 702 axial length of the first engine cylinder body adhesive surface at least with the depth phase of neighbouring kerf
Deng.It is more than the depth of kerf, it will start to reduce however, the axial range of the first engine cylinder body adhesive surface 702 is lengthened
The advantage on as cast condition surface, and compare other kinds of surface, it will it reduces by between cylinder liner and engine block material
The advantageous effect for the strong structure and hot sticky power that as cast condition provides.
In addition, Fig. 9 shows engine block material downwardly moving along bushing 700, so as to cylinder liner
End protruded slightly upwards in the top surface of engine block material.In other words, the end of cylinder liner 700 is in engine cylinder body
Material, which is nearby located on top surface, " proudly stands upright ".This and the difference in traditional engine cylinder body, in traditional engine
In in cylinder body, bushing 104 is prominent not on the top surface of engine block material, because engine block material is downward by bushing
It stretches.
Further relatively and to show the advantage of the present invention, Figure 10 is curve graph, and it illustrates traditional cylinder liner and show
Both example property Novel air cylinder bushings transit to residual stress when exemplary fabrication.The horizontal axis of curve graph is represented by various
The progress of the engine cylinder body of manufacturing process.The longitudinal axis of curve graph represents the amplitude of residual stress in cylinder liner.Straight line 1000
The residual stress of traditional cylinder liner end near the bore section of cylinder block is represented, straight line 1004 is represented according to the present invention
Embodiment, 1002 generation of residual stress and straight line of the exemplary cylinder gasket end near the bore section of cylinder block
The residual stress of same example cylinder liner part near table bore section, but its position is moved axially from gasket end,
And just past the depth of kerf in endoporus.Corresponding with straight line 1002 position shown in Fig. 9 and Figure 11, by reference numeral
Shown in 900.
Manufacturing process starts from 1006, and the engine block material melted herein is introduced into the mould including cylinder liner
Son.Between 1006 and 1008, engine cylinder body is cooled to solid in the mold.In this cooling procedure, traditional gas is introduced
The stress increase ratio of cylinder liner indicated by straight line 1000 introduces being answered by what straight line 1002 and 1004 indicated for Novel air cylinder bushing
Power is considerably more rapid.Engine cylinder body removes at 1008 from mould, and is cooled to environment temperature in turn until 1010.Again,
It shows clear as picture, the residual stress in conventional bushings 1000 is compared the residual stress in Novel lining 1002 and 1004 and continued
Significantly increase.Next, between 1010 and 1012, the inner surface of cylinder liner bears rough cutting operations, from cylinder
Material is removed in the wall of bushing, and further assembles residual stress.Compared to traditional cylinder liner, ovality is in Novel air cylinder bushing
In reduction it is particularly true.
Between 1012 and 1014, bore section is machined to provide kerf, and between 1014 and 1016, cylinder
The inner surface of bushing is further machined to provide finish hole surface.It is fairly obvious, each progressive step in manufacturing process
Suddenly being continuously increased for traditional cylinder liner end residual stress can all be led to.Completely on the contrary, all parts of Novel air cylinder bushing
In residual stress all significantly become smaller.In particular, the residual stress of the end of the cylinder liner of close top surface 1004 is significantly
Reduce.
Figure 10 is watched in conjunction with Fig. 9 and Figure 11, the residual stress at the position 900 of Novel air cylinder bushing is also shown and compares end
It is slightly higher.But even so, the residual stress of the position is markedly inferior to the residual stress of traditional cylinder liner end.
Figure 11 shows that the end of cylinder liner 700 is as the bell-shaped of the end of cylinder liner 110 shown in Fig. 4 is open
Or bend radially outward degree is big like that.This further illustrates the reduction of ovality.The reduction of ovality is it is meant that from lining
It needs the material removed less in the wall of set, is generated in the circle of chance to obtain intensity higher and be further reduced defect
Hole.The reduction of residual stress has multiple advantage, because it minimizes stress, this stress may cause before this close to endoporus
Cylinder liner defect near end and/or crack；Reduce bell-shaped opening；And reduce ovality.
This description is substantially only exemplary, and is in no way intended to limit the present invention and its application or use.This hair
Bright extensive introduction can be realized by various forms.Therefore, although present invention comprises particular example, the present invention's
True scope should not be limited to this in this, because after having studied attached drawing, specification limit carefully and after the appended claims,
Obviously other improvements will be had.
Claims (10)
1. a kind of cylinder liner for engine cylinder body including endoporus kerf, including：
First engine cylinder body adhesive surface；And
Second engine cylinder body adhesive surface, the stickup level having between the cylinder liner and engine cylinder body are less than
First engine cylinder body, the distance that the second engine cylinder body adhesive surface extends from the axial end portion of the bushing are big
In the depth of the kerf of the bore section of the engine cylinder body.
2. bushing according to claim 1, wherein the first engine cylinder body adhesive surface includes as cast condition surface.
3. bushing according to claim 2, wherein the as cast condition surface includes thorn latching surface.
4. bushing according to claim 2, wherein the as cast condition surface include it is multiple radially extend 0.3 to 0.7 millimeter it
Between protrusion.
5. bushing according to claim 1, wherein the second engine cylinder body adhesive surface includes machining surface.
6. bushing according to claim 1, wherein the first engine cylinder body adhesive surface is from second engine
Cylinder body adhesive surface extends, essentially across the remaining axial range of the bushing.
7. bushing according to claim 1, wherein the first engine cylinder body adhesive surface is configured in the bushing
Strong mechanical viscous force and high-termal conductivity, and the wherein described second engine cylinder body adhesive surface are provided between the engine cylinder body
It is configured to provide the mechanical viscous force of reduction between the bushing and the engine cylinder body, to serve as a contrast described in casting process
Cover material and the engine block material cooling period, between the lagging material and the engine block material not
Stress with reduction when being transmitted to the bushing from the engine cylinder body with coefficient of thermal expansion.
8. bushing according to claim 1, wherein the second engine cylinder body adhesive surface is configured to allow described
Cylinder liner and engine block material cooling period, in the second engine cylinder body adhesive surface and the engine cylinder body
Between carry out axial displacement.
9. bushing according to claim 1, wherein the second engine cylinder body adhesive surface circumferentially extends through institute
State the bore section near zone of engine cylinder body, and the wherein described first engine cylinder body adhesive surface is from the bushing
Axial end portion extend through the remaining circumference range.
10. a kind of manufacture includes the method for the cylinder liner for engine cylinder body of endoporus kerf, the method includes：
Cylinder liner with the first engine cylinder body adhesive surface is provided；And
The part for removing the first engine cylinder body adhesive surface, to provide the second engine cylinder body adhesive surface,
The stickup level having between the cylinder liner and engine cylinder body is less than first engine cylinder body, wherein described second
The distance that engine cylinder body adhesive surface extends from the axial end portion of the bushing is more than the bore section of the engine cylinder body
The kerf depth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/439,076 US10247129B2 (en) | 2017-02-22 | 2017-02-22 | Cylinder liner for internal combustion engine |
| US15/439076 | 2017-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108457762A true CN108457762A (en) | 2018-08-28 |
| CN108457762B CN108457762B (en) | 2020-11-10 |
Family
ID=63167051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810127592.1A Expired - Fee Related CN108457762B (en) | 2017-02-22 | 2018-02-08 | Cylinder liner for internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10247129B2 (en) |
| CN (1) | CN108457762B (en) |
| DE (1) | DE102018103213B4 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989842A (en) * | 2019-04-29 | 2019-07-09 | 昆山三一动力有限公司 | Cylinder jacket, engine and vehicle |
| CN111287857A (en) * | 2018-12-10 | 2020-06-16 | 通用汽车环球科技运作有限责任公司 | Method for manufacturing engine cylinder block |
| CN113330206A (en) * | 2019-02-01 | 2021-08-31 | 卡特彼勒公司 | Liner for engine cylinder with lower liner support |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11098672B2 (en) | 2019-08-13 | 2021-08-24 | GM Global Technology Operations LLC | Coated cylinder liner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081434U (en) * | 1990-07-02 | 1991-07-24 | 王宁生 | Adiabatic engine with ceramic chamber lining |
| WO1998049434A1 (en) * | 1997-04-24 | 1998-11-05 | William Richard Mitchell | Internal combustion engine |
| US8906515B2 (en) * | 2009-06-02 | 2014-12-09 | Integran Technologies, Inc. | Metal-clad polymer article |
| CN105473255A (en) * | 2013-07-16 | 2016-04-06 | 费德罗-莫格尔公司 | Cylinder liner with bonding layer |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749331A (en) * | 1992-03-23 | 1998-05-12 | Tecsyn, Inc. | Powdered metal cylinder liners |
| DE19845347C1 (en) | 1998-10-02 | 2000-03-30 | Federal Mogul Burscheid Gmbh | Cylinder liner |
| DE19958185A1 (en) | 1999-12-02 | 2001-06-07 | Mahle Ventiltrieb Gmbh | Lost form for the production of a cylinder liner |
| JP3253605B2 (en) | 1999-12-15 | 2002-02-04 | テーピ工業株式会社 | Cast-in cast iron member, cast-in product using the same, and method of manufacturing cast-in cast iron member |
| MY122487A (en) | 2000-12-21 | 2006-04-29 | Petroliam Nasional Berhad | Interbore cooling system |
| DE10125615A1 (en) | 2001-05-25 | 2002-12-05 | Mahle Gmbh | Mold and method for making a lost foam cast model for a light metal liner |
| DE10147219B4 (en) | 2001-09-24 | 2004-02-26 | Daimlerchrysler Ag | Cylinder liner of an internal combustion engine |
| EP1504833B1 (en) | 2002-05-13 | 2006-05-31 | Honda Giken Kogyo Kabushiki Kaisha | Cast-iron insert and method of manufacturing same |
| JP4135634B2 (en) | 2003-12-25 | 2008-08-20 | 三菱自動車工業株式会社 | Engine cylinder liner structure |
| DE102004007774A1 (en) | 2004-02-18 | 2005-09-15 | Mahle Gmbh | Bushing for an internal combustion engine |
| JP4241627B2 (en) * | 2005-01-14 | 2009-03-18 | 富士重工業株式会社 | Cylinder liner and cylinder block |
| FR2887926B1 (en) | 2005-06-29 | 2010-08-13 | Peugeot Citroen Automobiles Sa | CYLINDER SHAPER FOR AN INTERNAL COMBUSTION ENGINE AND BLOCK CYLINDERS EQUIPPED WITH SUCH A SHIRT |
| US7665440B2 (en) | 2006-06-05 | 2010-02-23 | Slinger Manufacturing Company, Inc. | Cylinder liners and methods for making cylinder liners |
| DE102009056919B4 (en) * | 2009-12-03 | 2022-12-29 | Mahle International Gmbh | cylinder liner |
| US10094325B2 (en) | 2014-01-28 | 2018-10-09 | ZYNP International Corp. | Cylinder liner |
| US9784208B2 (en) * | 2014-06-25 | 2017-10-10 | Caterpillar Inc. | Cylinder liner having roll-burnished recess |
| US9670822B2 (en) | 2014-09-08 | 2017-06-06 | Ford Global Technologies, Llc | Bore bridge and cylinder cooling |
-
2017
- 2017-02-22 US US15/439,076 patent/US10247129B2/en not_active Expired - Fee Related
-
2018
- 2018-02-08 CN CN201810127592.1A patent/CN108457762B/en not_active Expired - Fee Related
- 2018-02-13 DE DE102018103213.7A patent/DE102018103213B4/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081434U (en) * | 1990-07-02 | 1991-07-24 | 王宁生 | Adiabatic engine with ceramic chamber lining |
| WO1998049434A1 (en) * | 1997-04-24 | 1998-11-05 | William Richard Mitchell | Internal combustion engine |
| US8906515B2 (en) * | 2009-06-02 | 2014-12-09 | Integran Technologies, Inc. | Metal-clad polymer article |
| CN105473255A (en) * | 2013-07-16 | 2016-04-06 | 费德罗-莫格尔公司 | Cylinder liner with bonding layer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287857A (en) * | 2018-12-10 | 2020-06-16 | 通用汽车环球科技运作有限责任公司 | Method for manufacturing engine cylinder block |
| CN111287857B (en) * | 2018-12-10 | 2021-08-31 | 通用汽车环球科技运作有限责任公司 | Method for manufacturing engine cylinder block |
| CN113330206A (en) * | 2019-02-01 | 2021-08-31 | 卡特彼勒公司 | Liner for engine cylinder with lower liner support |
| CN109989842A (en) * | 2019-04-29 | 2019-07-09 | 昆山三一动力有限公司 | Cylinder jacket, engine and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018103213A1 (en) | 2018-09-06 |
| DE102018103213B4 (en) | 2021-11-04 |
| US10247129B2 (en) | 2019-04-02 |
| US20180238263A1 (en) | 2018-08-23 |
| CN108457762B (en) | 2020-11-10 |
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